Multiple theories of problem-solving hypothesize that there are distinct qualitative phases exhibited during effective problem-solving. However, limited research has attempted to identify when transitions between phases occur. We integrate theory on collaborative problem-solving with dynamical systems theory suggesting that when a system is undergoing a phase transition it should exhibit a peak in entropy and that entropy levels should also relate to team performance. Communications from 40 teams that collaborated on a complex problem were coded for occurrence of problem-solving processes. (...) We applied a sliding window entropy technique to each team's communications and specified criteria for identifying data points that qualify as peaks and determining which peaks were robust. We used multilevel modeling, and provide a qualitative example, to evaluate whether phases exhibit distinct distributions of communication processes. We also tested whether there was a relationship between entropy values at transition points and CPS performance. We found that a proportion of entropy peaks was robust and that the relative occurrence of communication codes varied significantly across phases. Peaks in entropy thus corresponded to qualitative shifts in teams’ CPS communications, providing empirical evidence that teams exhibit phase transitions during CPS. Also, lower average levels of entropy at the phase transition points predicted better CPS performance. We specify future directions to improve understanding of phase transitions during CPS, and collaborative cognition, more broadly. (shrink)

In this paper we suggest that differing approaches to the science of social cognition mirror the arguments between radical embodied and traditional approaches to cognition. We contrast the use in social cognition of theoretical inference and mental simulation mechanisms with approaches emphasizing a direct perception of others’ mental states. We build from a recent integrative framework unifying these divergent perspectives through the use of dual-process theory and supporting social neuroscience research. Our elaboration considers two complementary notions of direct perception: one (...) primarily stemming from ecological psychology and the other from enactive cognition theory. We use this as the foundation from which to offer an account of the informational basis for social information and assert a set of research propositions to further the science of social cognition. In doing so, we point out how perception of the minds of others can be supported in some cases by lawful information, supporting direct perception of social affordances and perhaps, mental states, and in other cases by cues that support indirect perceptual inference. Our goal is to extend accounts of social cognition by integrating advances across disciplines to provide a multi-level and multi-theoretic description that can advance this field and offer a means through which to reconcile radical embodied and traditional approaches to cognitive neuroscience. (shrink)

What were Shakespeare's final thoughts on history, tragedy, and comedy? Shakespeare's Last Plays focuses much needed scholarly attention on Shakespeare's "Late Romances." The work—a collection of newly commissioned essays by leading scholars of classical political philosophy and literature—offers careful textual analysis of Pericles, Prince of Tyre, Cymbeline, The Winter's Tale, The Tempest, All is True, and The Two Noble Kinsmen. The essays reveal how Shakespeare's thought in these final works compliments, challenges, fulfills, or transforms previously held conceptions of the playwright (...) and his political-philosophical views. (shrink)

© 2017. The American Astronomical Society. All rights reserved.We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J and H bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au orbit with a 68% confidence interval between 14 and 28 au, an eccentricity (...) of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119°with a 68% confidence interval between 114°and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ±1.5 spectral type with a corresponding temperature of K. Photometry of the companion yields a luminosity of log=2.88 ± 0.07 dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ±1 to 95 ±4 M Jup. These results are consistent with previous measurements of the object. (shrink)

Some philosophers contend that the past must be finite in duration, because otherwise reaching the present would have involved the sequential occurrence of an actual infinity of events, which they regard as impossible. I recently developed a new objection to this finitist argument, to which Andrew Ter Ern Loke and Travis Dumsday have replied. Here I respond to the three main points raised in their replies.

Brentano (1874) famously claimed that two features demarcate the mental: consciousness and intentionality. Although he claimed that these features are intimately related, subsequent generations of philosophers rarely treated them together. Recently, however, the tide has turned. Many philosophers now accept that consciousness is intentional, where to be intentional is to have representational content, is to represent ‘things as being thus and so — where, for all that, things need not be that way’ (Travis, 2004, 58). In fact, weak representationalism, (...) which holds that perceptual experiences have representational content, is ‘now fairly uncontroversial’ (Lycan, 2004). (shrink)

This chapter contains sections titled: Willem A. deVries Hans Fink Christoph Halbig Stephen Houlgate Sabina Lovibond Kenneth R. Westphal Michael Williams Charles Travis.

Recently, several philosophers have challenged the view that evolutionary theory is usefully understood by way of an analogy with Newtonian mechanics. Instead, they argue that evolutionary theory is merely a statistical theory. According to this alternate approach, natural selection and random genetic drift are not even causes, much less forces. I argue that, properly understood, the Newtonian analogy is unproblematic and illuminating. I defend the view that selection and drift are causes in part by attending to a pair of important (...) distinctions—that between process and product and that between natural selection and fitness. (shrink)

For anyone approaching the Encheiridion of Epictetus for the first time, this book provides a comprehensive guide to understanding a complex philosophical text. Including a full translation and clear explanatory commentaries, Epictetus's 'Encheiridion' introduces readers to a hugely influential work of Stoic philosophy. Scott Aikin and William O. Stephens unravel the core themes of Stoic ethics found within this ancient handbook. Focusing on the core themes of self-control, seeing things as they are, living according to nature, owning one's roles (...) and fulfilling the responsibilities that those roles entail, the authors elucidate the extremely challenging ideas in Epictetus's brisk chapters. Divided into five distinct parts, this book provides readers with: -/- - A new translation of the Encheiridion by William O. Stephens. - A new introduction to ancient Stoicism, its system of concepts, and the ancient figures who shaped it. - A fresh treatment of the notorious and counter-intuitive 'Stoic paradoxes'. - An accessible overview of the origin and historical context of the Encheiridion. - Detailed commentaries on each chapter of the Encheiridion that clarify its recurring themes and highlight their interconnections. - Careful attention to the presentation of the arguments embedded in Epictetus's aphoristic style. - A thoughtful discussion of serious criticisms of Epictetus's Stoicism and replies to these objections. -/- Written with clarity and authority, Epictetus's 'Encheiridion' provides a foundation from which readers can understand this important text and engage with the fundamental questions of Stoic philosophy and ethics. This guide will aid teachers of Epictetus, students encountering Stoicism for the first time, and readers seeking a greater understanding of Stoic ethics. (shrink)

This study provides a comparative analysis of students' self-reported beliefs and behaviors related to six analogous pairs of conventional and digital forms of academic cheating. Results from an online survey of undergraduates at two universities (N = 1,305) suggest that students use conventional means more often than digital means to copy homework, collaborate when it is not permitted, and copy from others during an exam. However, engagement in digital plagiarism (cutting and pasting from the Internet) has surpassed conventional plagiarism. Students (...) also reported using digital "cheat sheets" (i.e., notes stored in a digital device) to cheat on tests more often than conventional "cheat sheets." Overall, 32% of students reported no cheating of any kind, 18.2% reported using only conventional methods, 4.2% reported using only digital methods, and 45.6% reported using both conventional and digital methods to cheat. "Digital only" cheaters were less likely than "conventional only" cheaters to report assignment cheating, but the former was more likely than the latter to report engagement in plagiarism. Students who cheated both conventionally and digitally were significantly different from the other three groups in terms of their self-reported engagement in all three types of cheating behavior. Students in this "both" group also had the lowest sense of moral responsibility to refrain from cheating and the greatest tendency to neutralize that responsibility. The scientific and educational implications of these findings are discussed in this study. (shrink)

Several philosophers have argued that natural selection will favor reliable belief formation; others have been more skeptical. These traditional approaches to the evolution of rationality have been either too sketchy or else have assumed that phenotypic plasticity can be equated with having a mind. Here I develop a new model to explore the functional utility of belief and desire formation mechanisms, and defend the claim that natural selection favors reliable inference methods in a broad, but not universal, range of circumstances.

The traditional view of evolutionary theory asserts that we can usefully understand natural selection, drift, mutation, migration, and the system of mating as forces that cause evolutionary change. Recently, Denis Walsh and Robert Brandon have objected to this view. Walsh argues that the traditional view faces a fatal dilemma and that the force analogy must be rejected altogether. Brandon accepts the force analogy but argues that drift, rather than the Hardy-Weinberg law, is the best candidate for a zero-force law. Here (...) I defend the traditional view against these objections. (shrink)

Stephens and Grahamset themselves an apparently modest task, to understand why people who experience alien voices and inserted thoughts do not believe that they themselves are the source of these experiences. However, it soon becomes clear that there are many connected issues here. In eight short chapters, they address the phenomenology and ontology of consciousness, the phenomenology of alien voices, inserted thoughts, obsessive-compulsive thoughts and feelings, and other cases of unusual experience often associated with psychopathology, including brief discussion of (...) multiple personality disorder. They survey some of the main empirical explanations of the phenomenology, set out the shortcomings of these theories, and end by proposing their own schematic account. (shrink)

Introduction: The humanities enrich and transform the practice of medicine. What remains to be seen, however, is how best to integrate humanities into the medical curriculum to optimize both educational and patient-related outcomes. The present study considers the structure of an innovative student-driven humanities curriculum and seeks to understand its strengths and limitations, as well as make recommendations for improvement. Methods: The Penn State College of Medicine, University Park Regional Campus uses an inquiry-based approach to education, whereby students are responsible (...) for creating learning objectives in four core pillars of exploration: Foundational Science, Clinical Science, Health Systems Science, and Health Humanities. This study explores student-derived humanities learning objectives (HLO) across four years of the curriculum. Results: 420 HLOs met criteria for analysis and were coded as instrumental (developing direct clinical skill), non-instrumental (non-skill based), or both. Of these, 125 (30%) were instrumental, 239 (57%) were non-instrumental, and 56 (13%) were coded as both. Most instrumental HLO centered around communication skills. Non-instrumental HLO most commonly focused on bearing witness and critiquing a particular experience within a social and/or political context. Conclusions: Findings from this study contribute to the development of a humanities curriculum in a student-directed learning program. Non-instrumental HLO lacked a theoretical framework to guide student’s investigations to a deeper level of analysis. Student-directed learning offers many strengths, but can be enhanced through external direction from humanities trained faculty, particularly given that many medical students have a limited humanities background. (shrink)

Abstract:A synthesis of the two theoretical bases of business ethics—normative philosophy and descriptive social science—is called for. Examples from the literature are used to demonstrate that to ignore the descriptive aspects of moral behavior is to risk unreal philosophy, and that to ignore the normative aspects is to risk amoral social science. Business ethics is portrayed as a single unified field, in which fact-value distinctions are inappropriate.

Beginning from an earlier claim of mine that there was really no such area of study as the philosophy of sport, Part One of the paper reconsiders the place previously given to David Best’s distinction between purposive sports and aesthetic sports. In light of a famous cricketing event in the 1977 contest between England and Australia (‘The Ashes’), in which Derek Randall turned a cartwheel after taking the winning catch, the paper clarifies that not all aesthetically-pleasing events taking place in (...) sporting competitions can be understood as the aesthetic in sport. Then, in Part Two, the force of the claim that philosophy is one subject is explored. The conclusion is that a focus just on the philosophy of sport is necessarily inappropriate, since it will present the student with only cases from sport to then apply to sport. Rather, one’s understanding must be informed by (much of) the breadth of philosophy. Charles Travis’s view of occasion-sensitivity provides a clear example of appropriately contextual appeal. Part Three of the paper returns to the need for an institutional account of sport, one recognizing that there is no one occasion on which a particular sport is played; and hence no single set of conditions which can uniquely identify that sport. Thus, soccer played with one’s children typically differs from elite soccer: but both are (genuinely) soccer. When one turns to the appreciation of sport (in the light of Stephen Mumford’s excellent Watching Sport: Aesthetics, Ethics and Emotion [2012a]), one recognizes that, in order to genuinely appreciate sport, one cannot detach oneself from the outcome as completely as Mumford’s extreme purist seems to. But reflection on that case may also return us to contextualism by moving us away from attachments to the complete or the exceptionless in our accounts of spectating as of sport: maybe there is no one thing that occurs in all the relevant cases. (shrink)

In 2015 the UK became the first country in the world to legalise mitochondrial donation, a controversial germ line reproductive technology to prevent the transmission of mitochondrial disease. Dimond and Stephens track the intense period of scientific and ethical review, public consultation and parliamentary debates preceeding the decision. They draw on stakeholder accounts and public documents to explore how patients, professionals, institutions and publics mobilised within ‘for’ and ‘against’ clusters, engaging in extensive promissory, emotional, bureaucratic, ethical, embodied and clinical (...) labour to justify competing visions of an ethical future. They describe how this decision is the latest iteration of a UK sociotechnical imaginary in which the further liberalization of human embryo research and use is rendered legitimate and ethical through modes of consultation and permissive but strictly regulated licensing. Overall, this book presents a timely, multi-dimensional, and sociological account of a globally significant landmark in the history of human genetics, and will be relevant to those with an interest in genetics, Science, Technology and Society, the sociology of medicine, reproductive technology, and public policy debate. (shrink)

One of the most difficult problems facing anyone who would discuss Professor Carl Hempel's thesis about explanation is the following: which of the many objections that have been made are actually relevant to the thesis? Professor Hempel has claimed that several of these objections are not relevant at all. In order to evaluate such replies, let me first state what I take to be the three claims which constitute Professor Hempel's thesis.His first claim is that all adequate scientific explanations possess (...) a certain property:... all scientific explanations and their everyday counterparts claim or presuppose at least implicitly the deductive or inductive subsumability of whatever is to be explained under general laws or theoretical principles. (shrink)

It is curious that the imperial Stoics, following a precedent of Diogenes the Cynic, employ so many wide-ranging examples of animal behavior. For example, what are we to make of the rigid dichotomy Seneca and Epictetus draw between rational and nonrational beings in relation to the diverse comparisons they make between human virtues and vices on the one hand and animal excellences and "bestial'behaviors on the other? Why are the most potent, diverse, and philosophically significant animal exempla found in Seneca (...) and Epictetus? I argue that it is because such exempla serve a variety of protreptic purposes. While appeals to the over-arching rationality of the cosmos may provide some theoretical understanding for the place of human beings in nature, from a pedagogical and rhetorical standpoint animal exempla provide particularly effective guidance for human conduct.Cleverly deployed animal exempla help cultivate aretaic affective dispositions. (shrink)

Discusses the psychological self-knowledge of philosopher G. Lynn Stephens who contends that both the overarching assertion that humans have psychological stress at all and each specific ascription of a psychological state to oneself requires justification by inference. Objectivity of moral and aesthetic values and the analysis of modal discourse; Role of certain qualities of objects in interactions among objects; Irrefragable reasons requirement of each psychological self-ascription.

The tremendous influence Stoicism has exerted on ethical thought from early Christianity through Immanuel Kant and into the twentieth century is rarely understood and even more rarely appreciated. Throughout history, Stoic ethical doctrines have both provoked harsh criticisms and inspired enthusiastic defenders. The Stoics defined the goal in life as living in agreement with nature. Humans, unlike all other animals, are constituted by nature to develop reason as adults, which transforms their understanding of themselves and their own true good. The (...) Stoics held that virtue is the only real good and so is both necessary and, contrary to Aristotle, sufficient for happiness; it in no way depends on luck. The virtuous life is free of all passions, which are intrinsically disturbing and harmful to the soul, but includes appropriate emotive responses conditioned by rational understanding and the fulfillment of all one's personal, social, professional, and civic responsibilities. The Stoics believed that the person who has achieved perfect consistency in the operation of his rational faculties, the "wise man," is extremely rare, yet serves as a prescriptive ideal for all. The Stoics believed that progress toward this noble goal is both possible and vitally urgent. (shrink)

Five different arguments for vegetarianism are discussed: the system of meat production deprives poor people of food to provide meat for the wealthy, thus violating the principle of distributive justice; the world livestock industry causes great and manifold ecological destruction; meat-eating cultures and societal oppression of women are intimately linked and so feminism and vegetarianism must both be embraced to transform our patriarchal culture; both utilitarian and rights-based reasoning lead to the conclusion that raising and slaughtering animals is immoral, and (...) so we ought to boycott meat; meat consumption causes many serious diseases and lowers life expectancy, and so is unhealthy. Objections to each argument are examined. The conclusion reached is that the cumulative case successfully establishes vegetarianism as a virtuous goal. (shrink)

This paper argues that Plato recognized that Socrates’ rational, reflective love, learned from the wise Diotima, is the only means of achieving secure, self-sufficient happiness and so the only way to avoid tragedy in human life.

As every philosopher knows, “the design argument” concludes that God exists from premisses that cite the adaptive complexity of organisms or the lawfulness and orderliness of the whole universe. Since 1859, it has formed the intellectual heart of creationist opposition to the Darwinian hypothesis that organisms evolved their adaptive features by the mindless process of natural selection. Although the design argument developed as a defense of theism, the logic of the argument in fact encompasses a larger set of issues. William (...) Paley saw clearly that we sometimes have an excellent reason to postulate the existence of an intelligent designer. If we find a watch on the heath, we reasonably infer that it was produced by an intelligent watchmaker. This design argument makes perfect sense. Why is it any different to claim that the eye was produced by an intelligent designer? Both critics and defenders of the design argument need to understand what the ground rules are for inferring that an intelligent designer is the unseen cause of an observed effect. (shrink)

This paper explores how to deliberate about food choices from a Stoic perspective informed by the value of environmental sustainability. This perspective is reconstructed from both ancient and contemporary sources of Stoic philosophy. An account of what the Stoic goal of “living in agreement with Nature” would amount to in dietary practice is presented. Given ecological facts about food production, an argument is made that Stoic virtue made manifest as wisdom, justice, courage, and temperance compel Stoic practitioners to select locally (...) sourced, low resource input, plant-based foods whenever circumstances allow. (shrink)

Cheney’s claim that there is a subtextual affinity between ancient Stoicism and deep ecology is historically unfounded, conceptually unsupported, and misguided from a scholarly viewpoint. His criticisms of Stoic thought are thus merely ad hominem diatribe. A proper examination of the central ideas of Stoic ethics reveals the coherence and insightfulness of Stoic naturalism and rationalism. While not providing the basis for a contemporary environmental ethic, Stoicism, nonetheless, contains some very fruitful ethical concepts.

Philosophers of sport have debated whether supporting one team over others is commendable or morally suspect. We show how Stoicism sheds light on this controversy. Several caricature views of Stoic sportsmanship are studied. Stoics learn how to enjoy the blessings that come their way without mistakenly judging challenges to be hardships that detract from their happiness. Stoic sportsmen celebrate the successes of their teams while exercising the virtues of patience, endurance, loyalty, and appreciation of athletic excellence when their teams flounder. (...) The Stoic ideal is not to be an indifferent, disinterested spectator, but rather a calm, polite, and engaged sportsman. (shrink)

These comments on Sabine Grebe, "The Transformation of the Husband/Wife Relationship during Exile: Letters from Cicero and Ovid" raise questions about the similarities and dissimilarities of marriage and friendship examined in the marriages of Cicero and Ovid.

William James’s radical empiricism and pragmatism constitutes a philosophy that can reconcile the split between intrinsic value theorists, who stress the development and relevance of theoretical axiology, and pragmatists who have favored a more direct emphasis on environmental policy and application. By distinguishing James’s emphasis on direct personal experience from John Dewey’s more socialized approach, James’s distinctive emphasis on the transformative possibilities of pure experience and his links to romantic sensibility enable us to articulate and validate the noninstrumental aspects of (...) experienced environmental values that anti-pragmatists habitually regard pragmatism as unable to speak for. Using James’s framework to explicate and support Anthony Weston’s radically noninstrumental “immediate values” better expresses the felt noninstrumental worth of nature than intrinsic value theory can. Nonetheless, a rapprochement between the two sides is possible: although James’s pragmatic naturalism is the framework that can best capture nature’s experienced noninstrumental worth and link it to wider human values, intrinsic value theory has real practical application in the realm of law, and pragmatists can support it in that domain, thus upholding the primary emphasis on practicality and policy that is usually seen as pragmatism’s main strength. (shrink)